Features Motion trigger recording function. Support 2 removable HDDs (over 250GB), IDE type. Wavelet Compression Format replaces Time Lapse VCR + Multiplexer. Stand-alone design. 4 Level video quality adjustable: Best / High / Normal / Basic. Support 4 / 7 / 9 / 10 / 13 / 16 Channels Multiplexing function. 16 Channels alarm input, one alarm output and ALARM display. Video loss detected in each channel can record up to 160 events. Power-loss memory function. Quick Multiple Search by date / time, alarm and full list. Security password protection. RS-232 and RS-485 communication protocol. Specifications Video format NTSC/EIA or PAL/CCIR Hard disk storage IDE type, UDMA 66, supported over 250GB HDD Camera Input Signal & Loop Back Composite video signal 1 Vp-p 75O BNC, 16 channels Main & Call Monitor Output Composite video signal 1 Vp-p 75O BNC Audio input 4 audio inputs, (RCA) Audio output 2 audio outputs, (RCA) Motion Detect Area 15 * 12 targets per camera (NTSC) / 15 * 14 targets per camera (PAL) Video Loss Detection Yes Refresh Rate Up to 120 fields/sec. for NTSC / 100 fields/sec. for PAL Recording Rate Up to 25 images/sec. for NTSC / 18 images/sec. for PAL Picture in Picture Yes (Movable) Key Lock Yes Picture Zoom 2*2 (Movable) Video Adjustable Color/ Contrast/ Brightness Adjustable Alarm Input TTL input, Hi (5V), Low (GND) Alarm Output COM,/N.O. Remote Control RS-232 or RS-485 Power Source AC100~240V ± 10% switching adaptor Power Consumption <45W Operation Temperature 10 ~ 40°C RS-232C / RS-485 (bps) 115200, 57600, 19200, 9600, 4800, 3600, 2400, 1200 Dimension (mm) 432(W) x 110(H) x 325(D) Net Weight 5.7 kgs